*p++ = OSSL_PARAM_construct_utf8_string(OSSL_DRBG_PARAM_CIPHER,
SN_aes_256_ctr, 0);
*p = OSSL_PARAM_construct_end();
- EVP_RAND_set_ctx_params(rctx, params);
+ EVP_RAND_instantiate(rctx, strength, 0, NULL, 0, params);
EVP_RAND_generate(rctx, bytes, sizeof(bytes), strength, 0, NULL, 0);
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_DRBG_PARAM_DIGEST, SN_sha512, 0);
*p = OSSL_PARAM_construct_end();
- EVP_RAND_set_ctx_params(rctx, params);
+ EVP_RAND_instantiate(rctx, strength, 0, NULL, 0, params);
EVP_RAND_generate(rctx, bytes, sizeof(bytes), strength, 0, NULL, 0);
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_DRBG_PARAM_MAC, SN_hmac, 0);
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_DRBG_PARAM_DIGEST, SN_sha256, 0);
*p = OSSL_PARAM_construct_end();
- EVP_RAND_set_ctx_params(rctx, params);
+ EVP_RAND_instantiate(rctx, strength, 0, NULL, 0, params);
EVP_RAND_generate(rctx, bytes, sizeof(bytes), strength, 0, NULL, 0);
*p++ = OSSL_PARAM_construct_utf8_string(OSSL_DRBG_PARAM_CIPHER,
SN_aes_256_ctr, 0);
*p = OSSL_PARAM_construct_end();
- EVP_RAND_set_ctx_params(rctx, params);
+ EVP_RAND_instantiate(rctx, strength, 0, NULL, 0, params);
EVP_RAND_generate(rctx, bytes, sizeof(bytes), strength, 0, NULL, 0);
*p++ = OSSL_PARAM_construct_octet_string(OSSL_RAND_PARAM_TEST_NONCE,
nonce, sizeof(nonce));
*p = OSSL_PARAM_construct_end();
- EVP_RAND_set_ctx_params(rctx, params);
+ EVP_RAND_instantiate(rctx, strength, 0, NULL, 0, params);
EVP_RAND_generate(rctx, bytes, sizeof(bytes), strength, 0, NULL, 0);
/* Random number generator functions: NIST */
int OSSL_FUNC_rand_instantiate(void *ctx, unsigned int strength,
int prediction_resistance,
- const unsigned char *pstr, size_t pstr_len);
+ const unsigned char *pstr, size_t pstr_len,
+ const OSSL_PARAM params[]);
int OSSL_FUNC_rand_uninstantiate(void *ctx);
int OSSL_FUNC_rand_generate(void *ctx, unsigned char *out, size_t outlen,
unsigned int strength, int prediction_resistance,
OSSL_FUNC_rand_instantiate() is used to instantiate the DRBG I<ctx> at a requested
security I<strength>. In addition, I<prediction_resistance> can be requested.
Additional input I<addin> of length I<addin_len> bytes can optionally
-be provided.
+be provided. The parameters specified in I<params> configure the DRBG and these
+should be processed before instantiation.
OSSL_FUNC_rand_uninstantiate() is used to uninstantiate the DRBG I<ctx>. After being
uninstantiated, a DRBG is unable to produce output until it is instantiated